US4534929AExpiredUtility
Matrix and method of using an aliphatic alcohol coated silica glass matrix
Est. expiryApr 27, 2003(expired)· nominal 20-yr term from priority
B29C 45/37Y10S425/808B29C 33/60B29L 2011/0016B29K 2709/08
28
PatentIndex Score
2
Cited by
6
References
6
Claims
Abstract
A matrix having a surface of silica glass which is suitable for the manufacture of articles of synthetic resin in which the surface of the matrix comprises a monolayer of an aliphatic alcohol, as well as a method of manufacturing articles having a surface of synthetic resin while using the matrix.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A method of manufacturing articles having at least one surface of a synthetic resin, in which a liquid synthetic resin composition is provided on a silica glass surface of a matrix, a supporting member is positioned in contact with a surface of said liquid synthetic resin composition, the liquid synthetic resin composition is converted into a solid synthetic resin layer and the solid synthetic resin layer, in which the configuration of the matrix surface is copied, and to which synthetic resin layer the supporting member adheres, is removed from the matrix, characterized in that a monolayer of an aliphatic alcohol, the aliphatic moiety of which is selected from the group consisting of alkyls of at least 8 carbon atoms and fluoroalkyls, is bound to said silica glass surface during said manufacture.
2. A matrix suitable for the manufacture of products having at least one surface of a synthetic resin, said matrix comprising a silica glass surface for contacting a surface of said synthetic resin during said manufacture, characterized in that during said manufacture said silica glass surface is provided with a releasing agent consisting of a monolayer of an aliphatic alcohol bound to said silica glass surface, the aliphatic moiety of said alcohol being selected from the group consisting of alkyls of at least 8 carbon atoms and fluoroalkyls.
3. A matrix as claimed in claim 2 characterized in that a monolayer of an alkyl alcohol is used the alkyl group of which comprises at least 8 carbon atoms.
4. A matrix as claimed in claim 2, characterized in that a monolayer of an aliphatic alcohol is used the aliphatic radical of which is a fluoralkyl group.
5. The matrix of claim 2 wherein the silica glass surface is ultrasmooth.
6. The matrix of claim 2 wherein the silica glass surface forms an accurate optical profile.Cited by (0)
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